dCache Tier I meeting August 17, 2010

[part of a series of meetings]

Present

dCache.org(), IN2P3(), Sara(), Triumf(Simon), BNL(), NDGF(Gerd), PIC(Gerard), GridKa(Doris), Fermi(), CERN()

Agenda

(see box on the other side)

Site reports

NDGF

Pretty OK. Found a couple of bugs, but they're now fixed.

Which version are you running? Somewhere between 1.9.9 and trunk. Pools are between 1.9.5 through to head version.

GridKa

Evertyhing is fine, nothing to report.

PIC

Everything is running smoothing in production

Questions about 1.9.9.

Triumf

Everything is OK in production

Planning to upgrade to 1.9.5-21; currently 1.9.5-17 and -19, planning to upgrade to 1.9.5-21.

Questions 1.9.9

I'm still waiting on NFS 4.1 virtual machine.

Tigran sent a link yesterday but this doesn't seem to work.

The image is working for Tigran. Perhaps it's a problem with the web-se

Enstore+Chimera. Fermi are testing with NFS v3. Is this a problem for using NFS v4?

You can run NFS 3 server on a separate machine from running the NFS v4.

We will ask Tigran about this point.

Do you expect issues from running NFS and PostGreSQL on separate machines? Not clear, since people haven't really deployed this.

Telephone conference with Dmitry last week; only a few remaining issues left.

WebDAV

1.9.6 Needed the door to proxy everything.

A bug, either in WebDAV library in dCache or the client that prevents

The client library had a work-around for a bug in apache as the absence of a HTTP header as indicating that the file has zero size.

Can fix this in dCache. It shouldn't break anything else.

CERN filesystem: cdmss. It's an RPM you install. Haven't been able to . Needs an HTTP URL to work. Use squid servers.

Trying to mount with davFS or fuse-dav.

Support tickets for discussion

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DTNM

Proposed: same time, next week.